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SCADA/EMS/DMSElectric UtilitiesNetworks & Markets

Lars-Ola Osterlund

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Some SCADA Terms

T SCADA = Supervisory Control And Data Acquisition

T EMS = Energy Management Systems

T DMS = Distribution Management System

T RTU = Remote Terminal Unit

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Power System

SubstationSubstation

SubstationSubstation

G G G GGeneration

Transmission

Distribution

RTU

RTU RTU

SCADA

RTU

SCADA

National

SCADA/EMS

Regional

SCADA/EMS

Regional

SCADA/EMS

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SCADA/EMS/DMS Architecture

Process

Communication

UnitRTU

Measurements

Controls

SCADA EMS DMS

HMI

Measurements

SCADA

EMS

DMS

Data points

100 1 000 000

10 000 100 000

Sub stations

1 10 000

100 10 000

10 000 1 000 000 1000 100 000

Approximate sizes High load

events per second

10 10 000

Updated

analogs per second

10 10 000

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H

MISCA

DA/EMS

Example

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SCADA Example Applications

T Data acquisition

T Alarms and event processing

T Outage scheduling

T Work order management

T Switch order

T ...

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EMS Example Applications

T Network related

T Network Topology Processing

T Dynamic Network Coloring

T State EstimationT Dispatchers Power Flow

T Optimal Power Flow

T Contingency analysis

T

Voltage stabilityT Dynamic stability

T Production related

T Load Frequency Control

T Economic dispatch

T Unit commitment

T Load Forecast

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DMS Example Applications

T Load calibration

T Distribution power flow

T Network Coloring

T Outage scheduling

T Work order management

T Customer Information Management

T Asset management

T ...

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Utility Enterprise Application Integration

SCADA& Remote

Communication

MeterReading

&Management

EnergyTrading

OperatorTraining

Simulator

District

HeatingApplications

Middleware Services

GenerationManagementPower Plants

EnergyManagementHV Network

Distribution

ManagementMV/LVNetwork

DistributionAutomation

MarketApplications

MarketOperation

CustomerAccount

Management

UtilityData

Warehouse

GUI

GIS &Asset

Management

ProcessInterface

...

...

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SCADA/EMS/DMS Integrated With Other IT-systems

NISERP/

CMMS

SCADA/EMS/DMS

CIS/

CRM

Import fromvarious old

NIS-systems

and othersources

Import fromvarious oldCIS-systems

Import fromvarious old

assetregisters

Mutual synchronization ofcommon data

Update of equipment usage

and fault reportsInitiation and coordination

of works in the network

Customer types and annualenergy consumption

Bulk and incremental export of asbuilt network and load models

Customer data extract

Trouble call registrationsOutage status information

Import from various old

SCADA-systems

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Disturbance Scenario

Real-time informationDisturbance reccords

CustomerService

Type of disturbanceTime to recoverNo. of customers affected

Work order

AssetManagement

Spares

Retail Sales

Customers affected

Customer complaints

Engineering

Disturbance information

Accounting

Asset records

ReportsReports

SubstationAutomation

Repair and Maintenance

Customer

Work report

Fault statistics

Disturbance report

Disturbance report

Compensation

Recovery information

Control Center

Switching orders